Archiv für Naturgeschichte, Volume 2; Volume 20

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Nicolai., 1854 - Natural history
 

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Page 47 - CAPTAIN L. SITGREAVES. — Report of an expedition down the Zuni and Colorado Rivers.
Page 472 - ... axis or skeleton, often interwoven with siliceous or calcareous spicula, and containing an organic gelatine in the interstices and interior canals...
Page 26 - Skeleton of the Mastodon Giganteus of North America. By John C. Warren, MD, &c.
Page 470 - ... the cells ending in a conical prominent tubercle closely covered externally with red calcareous spicula. The expanded base and the base of the stem and the interspaces between the cells are covered with smaller red calcareous granules. This genus may be named and characterized thus : — GONIGORIA. Coral clavate, slightly branched ; the root dilated ; axis horns black, compressed, thin ; bark thick, calcareous, covered with conical tubercles, each covered externally with numerous close red spicula.
Page 443 - ... considerable measure the error liable to the personal equation of prepossession, where time is not allowed for its elimination. Pennaria tiarella McCr. was first described by Ayers ('52), under the name of Globiceps tiarella, who has summarized its generic characters in substance as follows : Polypodon rising from a creeping root, branched. Short stems from the branches, supporting each a single polyp. Polyps encircled by three rows of arms, basal, median and near summit ; the arms of the upper...
Page 128 - Die neuesten und wichtigen Verbesserungen in der Fischzucht. Oder praktische Anleitung durch künstliche Befruchtung des Fischrogens alle fliessenden und stehenden Gewässer auf leichte und wohlfeile Weise mit Fischen jeder Gattung sehr zahlreich zu besetzen. Von Coste.
Page 156 - Huxley: On the Morphology of the Cephalous Mollusca, äs illustrated by the Anatomy of cerlain Heteropoda and Pteropoda collected during Ihe Voyage of HMS Rattlesnake.
Page 125 - Nieuwe tientallen diagnostische beschrijvingen van nieuwe of weinig bekende vischsoorten van Sumatra. Nat. Tijdschr.
Page 39 - die Nester und Eier der in Teutschland und den angrenzenden Ländern brütenden Vögel mit 228 nach der Natur gefertigten Abbildungen
Page 330 - Peloscolex. ng — -Setae in two rows, 6 to 10 in each fasciculus; podal hooks in two rows, in twos or threes, bifurcated at the free extremity, each annulation furnished with a circle of prominent tubercles, with numerous smaller ones. Upper lip hardly projecting. Girdle not prominent. Blood red. i.

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